The deduction for the hop itself is only .1. However, the gymnast will incur a multitude of other deductions as a result such as too long in support, which is up to .5, angle of repulsion, which is up to 1.0. She'll also likely receive deductions for lack of height and/or distance which are up to .5 and .3 respectively. For vault it's hard to say what the deduction is for one thing because that one mistake is likely the result of other things that would receive deductions & causes other deductions. It's all connected

There's many reasons why this could be happen. She could have a fear of hitting her back on the opposite end of the table and is double blocking to try and avoid that. She could be coming into the table too high & is coming straight down into the handstand instead of coming in at an angle. Or she could be coming in too low. It's hard to say for sure without seeing the vault.